Hi. Am 19+ , woman. I had irregular periods. And by doc's prescription I was on regestrone 5 mg course. I last had my periods on 12 th march. 6 th April I had protected sex. But from the confusion that if protection has worked or not I had a I-pill( emergency contraceptive pill) and my periods didn't started. Then I went through several pregnancy tests and all came negative. Then from my hormonal test reports my consultant gynecologist stated that due to interaction of regestrone and I-pill I got a non severe hormonal imbalance and made another prescription saying that my periods can be paused for 2 months or more and there was nothing to worry. My question is should I really not be worried at all?
Are this events common?
Can it have any long lasting effect in future?

When you take an emergency contraception pill, the I-Pill, you have to expect that your periods will be irregular for a few months afterwards. It is a huge dose of various hormones meant to prevent ovulation and implantation.

As for your question. No you shouldn't be worried. As you doctor said this is expect to happen. How you can trust anonymous online people over your doctor baffles me.